On Fri, Mar 09, 2012 at 09:07:24PM +0200, Ovidiu Deac wrote:

Does anybody know if there are any functions like these in the Haskell

libray?

updateSnd f (x,y) -> (x, f y)

updateFst f (x,y) -> (f x, y)

Yes: 'first' and 'second' from Control.Arrow.

-Brent

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